25/10/2018 The picture above shows what is involved to remove and replace a Land Rover Discovery TD V6 SE cylinder head. Hopefully seeing this people will understand why it sometimes take so long and why it is so expensive. Workshops are often slated for ripping customers off, not realising what is involved. The fact of the matter is in reality it takes about 22 hours labour for two people to get to this stage, excluding the machining and engineering, however the service provider is only allowed to charge about 10 hours labour. Without a doubt a service like this has to been done with the utmost precision and care to avoid any mistakes which could result in an enormous time consuming and labour intensive job being repeated at a huge loss.